CVE-2018-7536

medium

Description

An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.

References

Advisories
More

https://www.debian.org/security/2018/dsa-4161

https://usn.ubuntu.com/3591-1/

https://lists.debian.org/debian-lts-announce/2018/03/msg00006.html

https://access.redhat.com/errata/RHSA-2019:0265

https://access.redhat.com/errata/RHSA-2019:0082

https://access.redhat.com/errata/RHSA-2019:0051

https://access.redhat.com/errata/RHSA-2018:2927

http://www.securityfocus.com/bid/103361

https://www.djangoproject.com/weblog/2018/mar/06/security-releases/

https://github.com/django/django/commit/e157315da3ae7005fa0683ffc9751dbeca7306c8

https://github.com/django/django/commit/abf89d729f210c692a50e0ad3f75fb6bec6fae16

https://github.com/django/django/commit/1ca63a66ef3163149ad822701273e8a1844192c2

Details

Source: Mitre, NVD

Published: 2018-03-09

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.03212